the favourite side of portraits

During reflecting my photographs due to the sometimes not so easy to find real good answers for pictor, I made an interesting point of my head shootings......

Most of them have the left side (looking to the object) a little bit pronounced. I would say that this is my sweet spot, but why?

I know, if I would do boxing, my left hand and arm would be the 'leading' hand as I'm a right-hander (hope the translation is clear). 

That means that without even thinking about my movements in front of the subject I nearly always take the same position.

BTW: I heard that polar bears are left-puncher and the dogs from innuit would attack the right side........

For my shooting there are two things important:

1. I feel save and comfortable

2. all pics have a visual 'print' say it's easier to recognize the invisible 'watermark' of my pics.

It could be that due to the above theory the object feels in the opposite way a bit uncomfortable when the approach comes from the 'wrong' side for them and reacts different or softer.....

Whhoww! What an investigation.....could this be or is it the result of too much coffee?
Do you have the same feeling or did you never think about it?